Ball-cock valve.



. fornia, have invented new and useful' Im- I the following is a specification.

` that it begins to shut off the flow' of water closing valve'. 'It isfor the purpose of avoidvention 2 represents a tank or other suitable theUnited States, residing at I-Iayward,.in

- provide a valve automaticallywlosable by the rising level of' water in a tank,"reservoir or other receptacle, and particularly to proopened by the valve and water enters the claimed, having reference to the accompany- UNITED STATES PATENT OFFICE.

GEORGE W. `IUCE ANI) GEORGE C. VAN DYKE, OF HYWARD, CALIFORNIA.

` BAIL-COCK VALVE.

Specfication of Letters Patent' Pateted Nov. 1 2, 1912.

Application med April 15, 1912; Serial No. 690367,

To all whom it me concem: Be it known that we, GEORGE W, Leon and GEORGE C. VAN DYKE, both citizens of the county ef Alameda and' State of Galia provements' i`n`-Ball-Cock'Valves, of which This invention relates to ball cocks for tanks.`

It-.is the object of'the-prserpt inventonto vde a valve automatically operable to close; the valve being so designed ,that the flow of water may run. at; full discharge Capacity until the'level designed to be obtained is reached, at which time the valve will rapdlyand automatically close to cut ofl the supply ofwate'z a I As at present. constructed, many valves controlling the filling .of tanks are so'conhas been ezhausted, the supply -pipe is tank; the valve remaining open unt-ii such a :time as the ,de'sired quantity of water has collected in the tank. v In the common type of ValVe the mechanism i's 'so eo nstruoted 'at a consderable time before the desired quantty has been admitted to. the tank, and the disagreeable efl'ect of the gradual closing' of the 'valve' is the sound of escaping water, as it. forces it s 'way through the gra'dually ing this disagreeable condition and operatio'of ball cock valves that the present in vention is devised.

The invention 'consists of the parts and the construction and' combination of parts as hereinafter more fully described and ing "drawings, 1n'whih- V Figure '1 ,is a 'side elevation of the valve structure as mounted in a-tank, the valve be ng open. Fig. 2- is a similar View in partial section, the valve being closed.

In the illustrated embodiment of the in-.

receptacle adapted to be filled with water to 'a certain level through a supply connection 3 appropriately attached to the tank andto which structed and so operate that when the tan'k ,tank 2 through the drain opening Q the .elevers of' the de which is connected inside thetank a valve 4, over the seat ot which is closable a valve disk 4' of suitable Construction: "The valve disk 4' is connected to and -eperated by a stem 5 guide'd in a bushing or gland 6 externally threaded, as at 7, to be adjusted in the valve 4. The gland is provided with diametricallyopposite hearing luge S-S',

and' in one of these s pivoted a level* 9 of, the first order, the inner end of which is' being formedin the shape of alever with a short arm. 19 extending upwardly and' out-- wardly 'from the valve 4. The short arm 19 of thefloat lever 17 i is connected by a link 20 to. the pivot ll of the' lever 9, and on pivot the fioat lever 13'is mounted'. t When the water is discharged from the fioat`s`18 and 1.4: are'permitted to move, as the water level falls, to a position shown in Fig. 1 W'he'n the -disoharge aperture 2 is closed' and water begins to rise in the tank, the lower float ;will remain. stationary after the lock shoulders of the-pawl have engaged.

-thepi' 16, thuslocking the float in' its lowermostposition, as shown in Fig. 1. The float 18 cannot rise to lift the fulcrum ll on the 1ever9 by reason of the'conne'ction 'or link 20tothe lever arm 19, until the water rises suffioiently to lift the` float 14: and' disengage said lock 'shoulders from the pin, which is effcctedr-as follows: When the locking pawl 12 has engaged 'the transverse pin\ I6 'to pfeventthe"operation of the links and `v1ce,.the' position-ofthe valve stem -with its head 4:* will be such relative to zthe seat of the valve 4 that a full without' noise' 'and'the fillingof the tank pr'oceeds silently, until such a. time when ;the necessar o desired 'Volume of water hasc been col ected in the tank 2, and

then' the pressure of the water on the secondary oi'. auxliary fioat 14 will be sufiicient 10.0. -supply of water' is flovc ing` rapidly into the a .tan z to swngthe lever arm 13 about its fulcrum 11, and thu's pull the pawl 12 from looking engagement with' the transverse pin 16, at which moment, due to the release of the levermechanism, the float 18 will opernte to lift the lever 9 about its fulcrum 8 and instantly close the Valve cutting off the flow of water noiselessly.

The purpose 'of the adjustable gland 6 in the valve 4, is to permit the adjustment of the elevation of the bearings 8-8', and the i lever 9 piv'oted on one of said bearings relatve to the bottom of the tank, so as to control the level of Water at'which the paWl 12 becomes released from the pin 16. By gving the gland 6 one-half turn, manifestly the elevation of the fulcrums 8-8' Will be increased or decreased, according to the direction in which the gland is turned.

An advantage ofthe present valve is that the chance of the Valve becoming inefi'ective as a complete closure because of pa'ticlesiof foreign matter j amming in the valve disk is removed; because the valve seat does 'not gradually close allowing a small stream to 'pass the disk and thns'` act as a strain; the

present valve disk remains Wide open until released and then quickly seats and does not .to nstantlyelose the valve when the desircd quantity of water has been collected, said I means including a lev er connected to a-movable part of the valve, a pri :nin-y fioat operk tively connected to said .leven ;Llocking device mounted on the lever udagtedgg lock the level' from movement When the v'lve is closed and when the receptacle is practically discharged; a secondary float, said secondary fioatbeing adapted to release the locking device instantaneously when the desired quantity of Water has eccumulated and pernitting the primary float to close the valve.

2. The c'ombination With e liquid receptacle, of means controlling the supply of liqud to the receptacle, said means including a valve having a novable partand its sten, ;n adjustable gland in which the stern is reciprocble, a lever fulcrumed upon said gland and operably connected to the sten, a mcchansn for holding the Yalve in full open position during the adnission of Whter to the receptacle, a fioat opcrably connected to ;i

said means and adapted to relese the same When the desired Volume ot Water has accumulated, and a fioat connected to said level' and adapted to operate the same to close the' valvinstantly When the looking nechansm is released. e

In testmony Wherof We have hereunto s'etour hands in the presence of two suhscrbing witnesses.

GEORGE W. LUCE.

VVitnesses J. J. THORNY, E. K. NIssEN.

'opiesot this patent may be obtained for five cents each, by addressing the Commission(): of Patents,

Washington, I). C.

- GEORGE c. VAN DYKE, 

